Some mods added HMS Albatross, a formerly AUS seaplane carrier which was in RN by WWII. She operated mainly out of Capetown on commerse protection duties with Walrus aircraft. I copied her from another mod - and the data was almost perfect - even including her conversion to a tender in 1943 (after being damaged by a torpedo - which damage was not repaired although it wasn't too bad).

Turns out the ship was fitted with radar in 1940 - probably Type 281 in game terms - an early air search set. Aircraft Carriers of the World, 1914 to the Present, p 100.